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authorSimon Trimmer <simont@opensource.cirrus.com>2023-10-06 13:10:37 +0200
committerMark Brown <broonie@kernel.org>2023-10-06 13:30:27 +0200
commit3df761bdbc8bc1bb679b5a4d4e068728d930a552 (patch)
treeb8d0c0bd2cad290d71d315d3dc14eb0c040a7ee9 /include/sound
parentASoC: cs35l56: Change hibernate sequence to use allow auto hibernate (diff)
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ASoC: cs35l56: Wake transactions need to be issued twice
As the dummy wake is a toggling signal (either I2C or SPI activity) it is not guaranteed to meet the minimum asserted hold time for a wake signal. In this case the wake must guarantee rising edges separated by at least the minimum hold time. Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20231006111039.101914-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/cs35l56.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h
index 762b96b29211..8c18e8b6d27d 100644
--- a/include/sound/cs35l56.h
+++ b/include/sound/cs35l56.h
@@ -243,6 +243,7 @@
#define CS35L56_HALO_STATE_POLL_US 1000
#define CS35L56_HALO_STATE_TIMEOUT_US 50000
#define CS35L56_RESET_PULSE_MIN_US 1100
+#define CS35L56_WAKE_HOLD_TIME_US 1000
#define CS35L56_SDW1_PLAYBACK_PORT 1
#define CS35L56_SDW1_CAPTURE_PORT 3